Radiator replacement

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
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68gator
Posts: 3
Joined: Sat Aug 24, 2013 7:56 pm
Car: Non Turbo, manual 1990

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I have a 90, non turbo, with manual transmission. I ordered a replacement radiator, and the new one has two tubes at the bottom of the radiator, but my current one does not. Maybe these are for automatic transmission? If i simply do not use them, will that cut back on the cooling capacity ?
I have searched all around to try and find one that does not have those two tubes, but maybe it doesn't matter?

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nissanfreak12
Posts: 1709
Joined: Sun Jan 23, 2011 4:07 pm
Car: 92 300zx 2+2 TT
Location: Denver, CO

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Doesn't matter. ATF runs through the tubes to cool or regulate the auto transmission, not coolant. It also does not reduce cooling ability. Just install, ignore the tubes and move on.
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68gator
Posts: 3
Joined: Sat Aug 24, 2013 7:56 pm
Car: Non Turbo, manual 1990

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Glad to move on, thanks
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